NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 405 prefixes

783 of the 786 possible NXX blocks are assigned in area code 405 (99.6% of capacity), spread across 93 rate centers and 44 holders. The largest holders are SOUTHWESTERN BELL (235 blocks, 30.0%), NEW CINGULAR WIRELESS PCS, LLC - IL (102 blocks, 13.0%), T-MOBILE USA, INC. (87 blocks, 11.1%). Grouped by brand, AT&T accounts for 349 blocks; brand-attributable holders cover 90% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-03 to 2026-09-03, with 31 blocks handed out in 2012 alone. 563 blocks (72%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 1 assigned block (908) is not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 138 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

783 assigned blocks of 786
93 rate centers
44 holders of record
72% in thousands-block pooling

Largest holders in 405

Holder of record, as NANPA names itBrandBlocksShare
SOUTHWESTERN BELL AT&T 235 30%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 102 13%
T-MOBILE USA, INC. T-Mobile 87 11.1%
ONVOY, LLC - OK Onvoy 58 7.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK Verizon 55 7%
COMCAST IP PHONE, LLC Comcast 41 5.2%
LEVEL 3 COMMUNICATIONS, LLC - OK Lumen 22 2.8%
VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW Windstream 18 2.3%
PAETEC ITEL, LLC Windstream 16 2%
PIONEER TEL. COOP., INC. – 14 1.8%
BANDWIDTH.COM CLEC, LLC - OK Bandwidth 13 1.7%
UNITED STATES CELLULAR - OK – 11 1.4%

Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.

Rate centers with their own page

Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.

All 783 assigned blocks

One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.

PrefixHolder of recordRate centerAssignedPooledIn service
405-200 AT&T OKLA CITY – yes yes
405-201 UNITED STATES CELLULAR - OK OKLA CITY 2004-03-12 yes yes
405-202 Verizon OKLA CITY – – yes
405-203 Verizon OKLA CITY – – yes
405-204 T-Mobile OKLA CITY – yes yes
405-205 Verizon OKLA CITY – – yes
405-206 Verizon OKLA CITY – – yes
405-207 AT&T PAULS VLY – yes yes
405-208 Comcast OKLA CITY – yes yes
405-209 T-Mobile OKLA CITY – yes yes
405-210 T-Mobile OKLA CITY – yes yes
405-212 T-Mobile OKLA CITY – yes yes
405-213 AT&T OKLA CITY 2005-01-10 yes yes
405-214 AT&T SHAWNEE – yes yes
405-215 AT&T OKLA CITY – yes yes
405-216 AT&T EDMOND – yes yes
405-217 AT&T NORMAN – yes yes
405-218 AT&T OKLA CITY – – yes
405-219 AT&T OKLA CITY – yes yes
405-220 UNITED STATES CELLULAR - OK SEMINOLE – yes yes
405-221 UNITED STATES CELLULAR - OK HOLDENVL – yes yes
405-222 AT&T CHICKASHA – yes yes
405-223 T-Mobile OKLA CITY 2011-08-25 yes yes
405-224 AT&T CHICKASHA – – yes
405-225 AT&T OKLA CITY 2001-03-12 yes yes
405-226 Verizon OKLA CITY 2001-03-08 – yes
405-227 AT&T OKLA CITY – yes yes
405-228 AT&T OKLA CITY – – yes
405-229 Verizon OKLA CITY 2001-09-17 – yes
405-230 AT&T OKLA CITY – yes yes
405-231 AT&T OKLA CITY – – yes
405-232 AT&T OKLA CITY – – yes
405-233 Windstream ARCADIA – yes yes
405-234 AT&T OKLA CITY – yes yes
405-235 AT&T OKLA CITY – – yes
405-236 AT&T OKLA CITY – – yes
405-237 AT&T MOORE – yes yes
405-238 AT&T PAULS VLY – yes yes
405-239 AT&T OKLA CITY – yes yes
405-240 AT&T CHANDLER – yes yes
405-241 AT&T BRITTON – yes yes
405-242 Bandwidth BRITTON 2004-05-28 yes yes
405-243 UNITED STATES CELLULAR - OK OKLA CITY – yes yes
405-244 UNITED STATES CELLULAR - OK OKLA CITY 2025-03-03 yes yes
405-245 Verizon OKLA CITY – – yes
405-246 AT&T OKLA CITY – yes yes
405-247 AT&T ANADARKO – yes yes
405-248 AT&T OKLA CITY – yes yes
405-249 AT&T OKLA CITY 2001-03-26 – yes
405-250 AT&T OKLA CITY – – yes
405-251 UNITED STATES CELLULAR - OK WYNNEWOOD – yes yes
405-252 AT&T BRITTON 2014-10-20 yes yes
405-253 AT&T NORMAN – yes yes
405-254 Verizon BRITTON – yes yes
405-255 AT&T OKLA CITY 2001-03-26 – yes
405-256 Comcast MUSTANG – yes yes
405-257 AT&T WEWOKA – yes yes
405-258 AT&T CHANDLER – yes yes
405-259 Comcast NICOMAPARK – yes yes
405-260 AT&T GUTHRIE – yes yes
405-261 Comcast WHEATLAND – yes yes
405-262 AT&T EL RENO – – yes
405-263 PIONEER TEL. COOP., INC. OKARCHE – – yes
405-264 AT&T OKLA CITY – yes yes
405-265 Comcast YUKON – yes yes
405-266 Onvoy WANETTE – yes yes
405-267 Bandwidth BYARS – yes yes
405-268 T-Mobile PAULS VLY – yes yes
405-269 T-Mobile STILLWATER – yes yes
405-270 AT&T OKLA CITY – – yes
405-271 AT&T OKLA CITY – – yes
405-272 AT&T OKLA CITY – – yes
405-273 AT&T SHAWNEE – – yes
405-274 T-Mobile CHICKASHA – yes yes
405-275 AT&T SHAWNEE – – yes
405-276 Onvoy EL RENO 2013-07-05 yes yes
405-277 AT&T LUTHER – yes yes
405-278 AT&T OKLA CITY – yes yes
405-279 Windstream MEEKER – yes yes
405-280 AT&T OKLA CITY – yes yes
405-281 Comcast CHOCTAW – yes yes
405-282 AT&T GUTHRIE – – yes
405-283 Comcast PIEDMONT – yes yes
405-284 HINTON TEL. CO. OF HINTON OK, INC. CEDAR LAKE – – yes
405-285 Comcast EDMOND – yes yes
405-286 Comcast BRITTON – yes yes
405-287 AT&T TECUMSEH – yes yes
405-288 Windstream WASHINGTON – yes yes
405-289 Windstream ST LOUIS – yes yes
405-290 AT&T OKLA CITY – yes yes
405-291 AT&T OKLA CITY – yes yes
405-292 AT&T NORMAN – yes yes
405-293 Comcast GUTHRIE – yes yes
405-294 Comcast NOBLE – yes yes
405-295 Comcast EL RENO – yes yes
405-296 Onvoy CROMWELL – yes yes
405-297 AT&T OKLA CITY – yes yes
405-298 AT&T KINGFISHER – – yes
405-299 Onvoy CALVIN – yes yes
405-300 AT&T MOORE 2014-04-17 yes yes
405-301 AT&T OKLA CITY 2005-08-17 yes yes
405-302 AT&T BRITTON – yes yes
405-303 AT&T SEMINOLE – yes yes
405-304 Spok OKLA CITY – – yes
405-305 T-Mobile OKLA CITY 2007-07-31 yes yes
405-306 AT&T OKLA CITY – – yes
405-307 AT&T NORMAN – – yes
405-308 Lumen OKLA CITY 2001-07-26 yes yes
405-309 Bandwidth HARRAH – yes yes
405-310 Comcast NORMAN – yes yes
405-312 AT&T OKLA CITY 2007-02-26 yes yes
405-313 AT&T OKLA CITY 2005-01-10 yes yes
405-314 T-Mobile OKLA CITY – – yes
405-315 AT&T EDMOND 2003-03-07 yes yes
405-316 AT&T OKLA CITY 2001-06-12 yes yes
405-317 AT&T OKLA CITY 2001-01-03 – yes
405-318 Verizon OKLA CITY 2012-03-14 yes yes
405-319 AT&T OKLA CITY – yes yes
405-320 AT&T CHICKASHA – yes yes
405-321 AT&T NORMAN – – yes
405-322 AT&T NORMAN – yes yes
405-323 Verizon OKLA CITY 2001-05-15 – yes
405-324 AT&T YUKON – – yes
405-325 AT&T NORMAN – – yes
405-326 T-Mobile OKLA CITY – – yes
405-327 Spok OKLA CITY – – yes
405-328 Verizon CHANDLER 2001-05-11 yes yes
405-329 AT&T NORMAN – – yes
405-330 AT&T EDMOND – – yes
405-331 CSC VOICE, LLC PAULS VLY – yes yes
405-332 AT&T STILLWATER – yes yes
405-333 POTTAWATOMIE TEL. CO. PEARSON – – yes
405-334 Lumen STILLWATER 2001-08-17 yes yes
405-335 Onvoy WYNNEWOOD – yes yes
405-336 Onvoy WELEETKA – yes yes
405-337 Onvoy WEWOKA – yes yes
405-338 T-Mobile STILLWATER – yes yes
405-339 T-Mobile ANADARKO 2013-04-30 yes yes
405-340 AT&T EDMOND – – yes
405-341 AT&T EDMOND – – yes
405-342 Onvoy ARCADIA – yes yes
405-343 AT&T OKLA CITY 2005-12-06 yes yes
405-344 PIONEER TEL. COOP., INC. DIBBLE – – yes
405-345 Onvoy EL RENO – yes yes
405-346 Onvoy GUTHRIE – yes yes
405-347 Onvoy HARRAH – yes yes
405-348 AT&T EDMOND – – yes
405-349 Onvoy LUTHER – yes yes
405-350 AT&T YUKON – – yes
405-351 AT&T ALEX 2002-05-16 yes yes
405-352 AT&T MINCO – yes yes
405-353 Onvoy MUSTANG – yes yes
405-354 AT&T YUKON – – yes
405-355 Onvoy NOBLE – yes yes
405-356 AT&T WELLSTON – yes yes
405-357 Onvoy WHEATLAND – yes yes
405-358 Onvoy PIEDMONT – yes yes
405-359 AT&T EDMOND – – yes
405-360 AT&T NORMAN – – yes
405-361 T-Mobile OKLA CITY 2001-02-27 – yes
405-362 Onvoy TUTTLE – yes yes
405-363 T-Mobile EDMOND 2022-09-29 yes yes
405-364 AT&T NORMAN – – yes
405-365 AT&T OKLA CITY 2007-07-13 yes yes
405-366 AT&T NORMAN – – yes
405-367 AT&T BETHANY 2006-01-19 yes yes
405-368 Verizon KINGFISHER – – yes
405-369 Onvoy MINCO 2013-07-05 yes yes
405-370 T-Mobile OKLA CITY – yes yes
405-371 T-Mobile OKLA CITY 2005-11-14 yes yes
405-372 AT&T STILLWATER – – yes
405-373 AT&T PIEDMONT – yes yes
405-374 AT&T MAUD – yes yes
405-375 PIONEER TEL. COOP., INC. KINGFISHER – – yes
405-376 AT&T MUSTANG – – yes
405-377 AT&T STILLWATER – yes yes
405-378 AT&T MOORE – yes yes
405-379 AT&T HOLDENVL – yes yes
405-380 AT&T SEMINOLE – yes yes
405-381 AT&T TUTTLE – yes yes
405-382 AT&T SEMINOLE – – yes
405-383 AT&T WANETTE – yes yes
405-384 Windstream BETHANY – yes yes
405-385 AT&T STILLWATER – yes yes
405-386 MCLOUD TEL. CO. STELLA – – yes
405-387 PIONEER TEL. COOP., INC. NEWCASTLE – – yes
405-388 AT&T OKLA CITY – – yes
405-389 Onvoy WETUMKA – yes yes
405-390 OKLAHOMA COMMUNICATION SYSTEM, INC. CHOCTAW – yes yes
405-391 MCLOUD TEL. CO. NEWALLA – – yes
405-392 PIONEER TEL. COOP., INC. NEWCASTLE – – yes
405-393 Onvoy MAUD – yes yes
405-394 Verizon OKLA CITY 2012-03-14 yes yes
405-395 AT&T SHAWNEE – yes yes
405-396 AT&T ARCADIA – yes yes
405-397 AT&T OKLA CITY 2006-01-19 yes yes
405-398 POTTAWATOMIE TEL. CO. BOWLEGS – – yes
405-399 OKLAHOMA COMMUNICATION SYSTEM, INC. JONES – yes yes
405-400 Onvoy OKLA CITY 2015-11-24 yes yes
405-401 AT&T OKLA CITY – – yes
405-402 T-Mobile ANADARKO 2013-06-12 yes yes
405-403 Verizon OKLA CITY 2012-08-09 yes yes
405-404 T-Mobile CHANDLER 2013-05-23 yes yes
405-405 Onvoy ALEX 2025-12-22 yes yes
405-406 Verizon OKLA CITY – yes yes
405-407 Onvoy NOBLE 2016-03-04 yes yes
405-408 T-Mobile OKLA CITY – – yes
405-409 T-Mobile OKLA CITY – yes yes
405-410 T-Mobile OKLA CITY – – yes
405-412 T-Mobile OKLA CITY – – yes
405-413 T-Mobile OKLA CITY – – yes
405-414 T-Mobile OKLA CITY – – yes
405-415 Verizon OKLA CITY – yes yes
405-416 Verizon OKLA CITY – yes yes
405-417 T-Mobile OKLA CITY – yes yes
405-418 Windstream BRITTON – yes yes
405-419 AT&T OKLA CITY – – yes
405-420 AT&T OKLA CITY 2005-01-10 yes yes
405-421 Peerless OKLA CITY 2014-08-25 yes yes
405-422 AT&T EL RENO – yes yes
405-423 Verizon OKLA CITY 2012-03-14 yes yes
405-424 AT&T OKLA CITY – yes yes
405-425 AT&T OKLA CITY – yes yes
405-426 AT&T OKLA CITY – yes yes
405-427 AT&T OKLA CITY – – yes
405-428 Lumen LINDSAY 2004-05-04 yes yes
405-429 UNITED STATES CELLULAR - OK OKLA CITY 2007-11-15 yes yes
405-430 T-Mobile OKLA CITY 2014-03-03 yes yes
405-431 AT&T OKLA CITY 2006-12-14 yes yes
405-432 AT&T SHAWNEE 2010-02-19 yes yes
405-433 AT&T CASHION – yes yes
405-434 AT&T SHAWNEE 2011-08-08 yes yes
405-435 Verizon OKLA CITY 2012-03-14 yes yes
405-436 T-Mobile OKLA CITY 2006-11-01 yes yes
405-437 AT&T OKLA CITY 2013-02-19 yes yes
405-438 T-Mobile OKLA CITY 2015-09-22 yes yes
405-439 Verizon OKLA CITY 2012-03-14 yes yes
405-440 AT&T BETHANY – yes yes
405-441 Verizon OKLA CITY 2012-04-09 yes yes
405-442 Windstream PURCELL 2008-12-09 yes yes
405-443 AT&T OKLA CITY 2007-02-26 yes yes
405-444 UNITED STATES CELLULAR - OK PAULS VLY – yes yes
405-445 Lumen OKLA CITY 2006-02-09 yes yes
405-446 Verizon OKLA CITY 2012-03-14 yes yes
405-447 AT&T NORMAN – yes yes
405-448 AT&T CHICKASHA – yes yes
405-449 Windstream WAYNE – yes yes
405-450 Verizon HOLDENVL 2017-06-13 yes yes
405-451 Onvoy WELLSTON 2016-06-23 yes yes
405-452 AT&T WETUMKA – yes yes
405-453 OKLAHOMA COMMUNICATION SYSTEM, INC. VERDEN – yes yes
405-454 AT&T HARRAH – yes yes
405-455 Comcast MIDWEST CY – yes yes
405-456 AT&T OKLA CITY 2008-02-13 yes yes
405-457 HINTON TEL. CO. OF HINTON OK, INC. LOOKEBA – – yes
405-458 AT&T MIDWEST CY 2010-01-18 yes yes
405-459 AT&T POCASSET – yes yes
405-460 AT&T OKLA CITY – – yes
405-461 Windstream ASHER 2016-07-12 yes yes
405-462 PIONEER TEL. COOP., INC. BRADLEY – – yes
405-463 Comcast BRITTON – yes yes
405-464 AT&T OKLA CITY 2006-06-21 yes yes
405-465 Verizon OKLA CITY 2012-03-14 yes yes
405-466 AT&T GUTHRIE – yes yes
405-467 Onvoy YUKON 2016-06-17 yes yes
405-468 T-Mobile OKLA CITY 2012-03-13 yes yes
405-469 CHICKASAW TEL. CO. ROSEDALE – – yes
405-470 Comcast BETHANY – yes yes
405-471 AT&T EDMOND – yes yes
405-472 T-Mobile OKLA CITY – – yes
405-473 T-Mobile OKLA CITY – – yes
405-474 T-Mobile OKLA CITY – – yes
405-475 AT&T BRITTON – – yes
405-476 T-Mobile OKLA CITY – – yes
405-477 Windstream MEEKER 2015-06-19 yes yes
405-478 AT&T BRITTON – – yes
405-479 Verizon OKLA CITY 2012-08-17 yes yes
405-480 T-Mobile ANADARKO 2016-08-31 yes yes
405-481 AT&T SHAWNEE 2008-12-17 yes yes
405-482 Verizon OKLA CITY 2011-09-14 yes yes
405-483 OKLAHOMA COMMUNICATION SYSTEM, INC. UNION CITY – yes yes
405-484 CHICKASAW TEL. CO. PAOLI – – yes
405-485 PIONEER TEL. COOP., INC. BLANCHARD – – yes
405-486 AT&T BRITTON 2001-10-05 yes yes
405-487 AT&T OKLA CITY 2001-09-25 yes yes
405-488 Windstream OKLA CITY – yes yes
405-489 AT&T CEMENT – yes yes
405-490 T-Mobile ANADARKO 2018-03-29 yes yes
405-491 AT&T BETHANY – yes yes
405-492 Verizon OKLA CITY 2011-11-22 yes yes
405-493 Lumen OKLA CITY 2016-10-17 yes yes
405-494 Windstream YUKON – yes yes
405-495 AT&T BETHANY – – yes
405-496 AT&T OKLA CITY 2005-12-06 yes yes
405-497 Twilio OKLA CITY 2021-05-04 yes yes
405-498 AT&T BETHANY – yes yes
405-499 AT&T BETHANY – – yes
405-500 Onvoy OKLA CITY 2015-08-13 yes yes
405-501 AT&T OKLA CITY 2006-01-19 yes yes
405-502 Spok OKLA CITY – – yes
405-503 T-Mobile OKLA CITY – yes yes
405-504 Peerless MINCO 2019-03-08 yes yes
405-505 T-Mobile OKLA CITY 2011-10-17 yes yes
405-506 Verizon BETHANY – yes yes
405-507 Onvoy BRITTON – yes yes
405-508 Verizon OKLA CITY 2011-11-15 yes yes
405-509 Comcast EDMOND – yes yes
405-510 Comcast OKLA CITY – yes yes
405-512 T-Mobile OKLA CITY 2006-05-22 yes yes
405-513 Comcast EDMOND – yes yes
405-514 T-Mobile OKLA CITY – yes yes
405-515 AT&T NORMAN 2007-04-18 yes yes
405-516 Onvoy OKLA CITY – yes yes
405-517 AT&T OKLA CITY 2001-02-22 – yes
405-518 Windstream WHEATLAND – yes yes
405-519 Verizon OKLA CITY 2005-05-12 yes yes
405-520 T-Mobile OKLA CITY – yes yes
405-521 AT&T OKLA CITY – yes yes
405-522 Comcast OKLA CITY – – yes
405-523 AT&T OKLA CITY – – yes
405-524 AT&T OKLA CITY – – yes
405-525 AT&T OKLA CITY – – yes
405-526 Onvoy OKLA CITY – yes yes
405-527 Windstream PURCELL – – yes
405-528 AT&T OKLA CITY – – yes
405-529 Onvoy BRITTON – yes yes
405-530 AT&T OKLA CITY – – yes
405-531 Bandwidth EDMOND 2014-05-19 yes yes
405-532 T-Mobile OKLA CITY 2006-10-13 yes yes
405-533 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. STILLWATER – – yes
405-534 AT&T OKLA CITY 2013-03-07 yes yes
405-535 AT&T OKLA CITY 2005-01-10 yes yes
405-536 Onvoy OKLA CITY – yes yes
405-537 T-Mobile OKLA CITY 2007-06-01 yes yes
405-538 AT&T KINGFISHER 2005-03-18 yes yes
405-539 PAGE PLUS, INC. OKLA CITY – – yes
405-540 IP HORIZON LLC OKLA CITY 2021-03-02 yes yes
405-541 Verizon OKLA CITY 2012-04-09 yes yes
405-542 HINTON TEL. CO. OF HINTON OK, INC. HINTON – yes yes
405-543 Lumen OKLA CITY – yes yes
405-544 WICHITA ONLINE, INC. - OK CHICKASHA 2015-05-07 yes yes
405-545 AT&T COLONY 2006-04-18 yes yes
405-546 Verizon OKLA CITY 2012-08-17 yes yes
405-547 AT&T PERKINS – yes yes
405-548 NUSO, LLC OKLA CITY – yes yes
405-549 AT&T OKLA CITY – yes yes
405-550 AT&T OKLA CITY – – yes
405-551 AT&T OKLA CITY – yes yes
405-552 AT&T OKLA CITY – – yes
405-553 AT&T OKLA CITY – – yes
405-554 Peerless POCASSET 2016-02-03 yes yes
405-556 AT&T OKLA CITY – yes yes
405-557 AT&T OKLA CITY – – yes
405-558 AT&T OKLA CITY – yes yes
405-559 Spok OKLA CITY – – yes
405-560 PAGE PLUS, INC. OKLA CITY – – yes
405-561 T-Mobile NORMAN 2014-09-04 yes yes
405-562 Windstream EDMOND – yes yes
405-563 Lumen OKLA CITY 2008-01-03 yes yes
405-564 CSC VOICE, LLC STILLWATER – yes yes
405-565 T-Mobile OKLA CITY 2011-12-27 yes yes
405-566 AT&T PRAGUE 2006-12-14 yes yes
405-567 Windstream PRAGUE – yes yes
405-568 AT&T OKLA CITY 2008-02-15 yes yes
405-569 T-Mobile OKLA CITY 2012-05-15 yes yes
405-570 AT&T OKLA CITY – – yes
405-571 Lumen STILLWATER – yes yes
405-573 AT&T NORMAN – – yes
405-574 AT&T CHICKASHA – yes yes
405-575 Spok OKLA CITY – – yes
405-576 AT&T OKLA CITY – yes yes
405-577 AT&T YUKON – yes yes
405-578 Onvoy YUKON 2013-07-05 yes yes
405-579 AT&T NORMAN – – yes
405-581 Lumen EARLSBORO 2016-09-01 yes yes
405-582 AT&T MIDWEST CY 2008-06-19 yes yes
405-583 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. MULHALL 2002-10-28 yes yes
405-584 AT&T SEMINOLE 2001-11-09 yes yes
405-585 T-Mobile SHAWNEE 2007-04-18 yes yes
405-586 AT&T MERIDIAN – yes yes
405-587 AT&T OKLA CITY 2002-06-10 – yes
405-588 Lumen CHANDLER 2002-05-09 yes yes
405-589 T-Mobile CHANDLER 2002-05-23 yes yes
405-590 Verizon OKLA CITY – – yes
405-591 Peerless MERIDIAN 2015-12-16 yes yes
405-592 Lumen HOLDENVL 2002-05-29 yes yes
405-593 AT&T OKLA CITY 2008-02-15 yes yes
405-594 Onvoy OKLA CITY 2016-03-08 yes yes
405-595 AT&T OKLA CITY 2008-03-25 yes yes
405-596 AT&T OKLA CITY 2002-07-11 – yes
405-597 Lumen BLANCHARD 2019-02-14 yes yes
405-598 Windstream TECUMSEH – yes yes
405-599 AT&T OKLA CITY – – yes
405-600 Comcast OKLA CITY – yes yes
405-601 Comcast OKLA CITY – – yes
405-602 Comcast OKLA CITY – yes yes
405-603 Comcast BETHANY – yes yes
405-604 Comcast OKLA CITY – yes yes
405-605 Comcast OKLA CITY – yes yes
405-606 Comcast OKLA CITY – yes yes
405-607 Comcast BRITTON – yes yes
405-608 Comcast BRITTON – yes yes
405-609 Comcast OKLA CITY – yes yes
405-610 Comcast MIDWEST CY – yes yes
405-612 AT&T STILLWATER – – yes
405-613 AT&T OKLA CITY – – yes
405-614 UNITED STATES CELLULAR - OK STILLWATER 2002-03-06 yes yes
405-615 AT&T OKLA CITY – – yes
405-616 AT&T OKLA CITY – yes yes
405-617 T-Mobile SHAWNEE 2016-07-12 yes yes
405-618 AT&T OKLA CITY 2006-06-21 yes yes
405-619 AT&T OKLA CITY – yes yes
405-620 AT&T OKLA CITY – yes yes
405-621 AT&T BETHANY – yes yes
405-622 Windstream MIDWEST CY – yes yes
405-623 AT&T OKLA CITY – – yes
405-624 AT&T STILLWATER – – yes
405-625 AT&T OKLA CITY 2005-12-06 yes yes
405-626 AT&T OKLA CITY 2007-12-11 yes yes
405-627 Verizon OKLA CITY – – yes
405-628 AT&T OKLA CITY 2008-03-25 yes yes
405-629 AT&T OKLA CITY – – yes
405-630 AT&T OKLA CITY – yes yes
405-631 AT&T OKLA CITY – – yes
405-632 AT&T OKLA CITY – – yes
405-633 Bandwidth OKLA CITY 2008-06-19 yes yes
405-634 AT&T OKLA CITY – yes yes
405-635 AT&T OKLA CITY – yes yes
405-636 AT&T OKLA CITY – – yes
405-637 AT&T OKLA CITY 2007-02-26 yes yes
405-638 Verizon ANADARKO 2002-10-18 yes yes
405-639 AT&T OKLA CITY 2005-01-10 yes yes
405-640 AT&T OKLA CITY – – yes
405-641 Verizon OKLA CITY – – yes
405-642 AT&T OKLA CITY – – yes
405-643 AT&T FORT COBB – yes yes
405-644 AT&T OKLA CITY – – yes
405-645 AT&T CALVIN – yes yes
405-646 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. CARNEY 2002-10-28 yes yes
405-647 Spok OKLA CITY – – yes
405-648 Lumen ANADARKO 2002-05-22 yes yes
405-649 Onvoy MULHALL – yes yes
405-650 AT&T OKLA CITY – – yes
405-651 AT&T OKLA CITY 2006-12-16 yes yes
405-652 Bandwidth OKLA CITY – yes yes
405-653 Telnyx OKLA CITY 2016-12-14 yes yes
405-654 CENTRAL CELLULAR L.L.C. DBA COTC CONNECTIONS - OK CHANDLER 2015-10-30 yes yes
405-655 Verizon OKLA CITY 2011-10-31 yes yes
405-656 AT&T BINGER – yes yes
405-657 AT&T EDMOND 2010-01-08 yes yes
405-658 Verizon OKLA CITY 2011-11-22 yes yes
405-659 AT&T OKLA CITY – – yes
405-660 Spok OKLA CITY – – yes
405-661 AT&T HINTON – – yes
405-662 T-Mobile OKLA CITY 2012-03-08 yes yes
405-663 HINTON TEL. CO. OF HINTON OK, INC. HYDRO – – yes
405-664 AT&T OKLA CITY 2001-11-14 – yes
405-665 AT&T WYNNEWOOD – yes yes
405-666 COMMIO, LLC OKLA CITY 2017-08-03 yes yes
405-667 T-Mobile OKLA CITY 2012-06-19 yes yes
405-668 AT&T FORT COBB 2002-05-16 yes yes
405-669 Verizon OKLA CITY 2011-11-02 yes yes
405-670 AT&T OKLA CITY – yes yes
405-671 AT&T OKLA CITY – – yes
405-672 AT&T OKLA CITY – – yes
405-673 Verizon OKLA CITY 2012-08-17 yes yes
405-674 Peerless MUSTANG 2019-09-06 yes yes
405-675 T-Mobile OKLA CITY 2011-12-13 yes yes
405-676 Telnyx MOORE 2017-03-14 yes yes
405-677 AT&T OKLA CITY – – yes
405-678 CROSS WIRELESS, L.L.C. STILLWATER – – yes
405-679 Verizon OKLA CITY 2012-08-17 yes yes
405-680 AT&T OKLA CITY – – yes
405-681 AT&T OKLA CITY – – yes
405-682 AT&T OKLA CITY – – yes
405-683 AT&T WEWOKA 2002-05-24 yes yes
405-684 AT&T OKLA CITY – yes yes
405-685 AT&T OKLA CITY – – yes
405-686 AT&T OKLA CITY – yes yes
405-687 AT&T BINGER 2002-05-16 yes yes
405-688 AT&T OKLA CITY – – yes
405-689 Windstream TUTTLE – yes yes
405-690 Spok OKLA CITY – – yes
405-691 AT&T MOORE – yes yes
405-692 AT&T MOORE – – yes
405-693 AT&T OKLA CITY 2012-09-06 yes yes
405-694 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. OKLA CITY 2001-12-14 yes yes
405-695 Verizon SHAWNEE 2011-11-15 yes yes
405-696 Bandwidth EDMOND 2013-04-08 yes yes
405-697 Bandwidth EDMOND 2015-04-23 yes yes
405-698 AT&T OKLA CITY 2011-12-28 yes yes
405-699 PIONEER TEL. COOP., INC. KINGFISHER – yes yes
405-701 Comcast NORMAN – yes yes
405-702 Comcast OKLA CITY – yes yes
405-703 Comcast MOORE – yes yes
405-704 Windstream TECUMSEH 2017-07-07 yes yes
405-705 Onvoy EDMOND – yes yes
405-706 T-Mobile OKLA CITY – yes yes
405-707 AT&T STILLWATER – – yes
405-708 AT&T OKLA CITY 2006-01-19 yes yes
405-709 Onvoy BETHANY – yes yes
405-710 PAGE PLUS, INC. MOORE – – yes
405-712 AT&T HOLDENVL 2001-11-09 yes yes
405-713 AT&T OKLA CITY – yes yes
405-714 Verizon STILLWATER – yes yes
405-715 AT&T EDMOND – – yes
405-716 Lumen SEMINOLE 2002-05-29 yes yes
405-717 AT&T BETHANY – – yes
405-718 Lumen NEWALLA 2017-08-22 yes yes
405-719 Verizon OKLA CITY 2012-03-14 yes yes
405-720 AT&T BETHANY – – yes
405-721 AT&T BETHANY – – yes
405-722 AT&T BETHANY – – yes
405-723 Charter BETHANY 2021-06-09 yes yes
405-724 Onvoy OKLA CITY 2017-06-15 yes yes
405-725 Peerless LUTHER – yes yes
405-726 Comcast EDMOND – yes yes
405-727 AT&T OKLA CITY 2012-03-14 yes yes
405-728 AT&T BETHANY – yes yes
405-729 PIONEER TEL. COOP., INC. LOYAL – – yes
405-730 AT&T BETHANY – yes yes
405-731 Onvoy MIDWEST CY 2013-07-05 yes yes
405-732 AT&T MIDWEST CY – – yes
405-733 AT&T MIDWEST CY – – yes
405-734 AT&T MIDWEST CY – – yes
405-735 Windstream MOORE – yes yes
405-736 AT&T MIDWEST CY – – yes
405-737 AT&T MIDWEST CY – – yes
405-738 EXIANT COMMUNICATIONS LLC OKLA CITY – yes yes
405-739 AT&T MIDWEST CY – – yes
405-740 AT&T OKLA CITY – – yes
405-741 AT&T MIDWEST CY – yes yes
405-742 AT&T STILLWATER – yes yes
405-743 AT&T STILLWATER – – yes
405-744 AT&T STILLWATER – – yes
405-745 AT&T WHEATLAND – yes yes
405-746 T-Mobile SEMINOLE 2017-08-01 yes yes
405-747 AT&T STILLWATER – yes yes
405-748 AT&T BRITTON – yes yes
405-749 AT&T BRITTON – yes yes
405-750 PAGE PLUS, INC. MOORE – – yes
405-751 AT&T BRITTON – – yes
405-752 AT&T BRITTON – – yes
405-753 AT&T BRITTON – yes yes
405-754 Verizon OKLA CITY 2012-04-09 yes yes
405-755 AT&T BRITTON – – yes
405-756 Windstream LINDSAY – yes yes
405-757 Verizon EDMOND 2010-12-14 yes yes
405-758 Lumen OKLA CITY 2012-02-22 yes yes
405-759 Comcast MOORE – yes yes
405-760 AT&T OKLA CITY – – yes
405-761 AT&T OKLA CITY 2006-07-20 yes yes
405-762 T-Mobile STILLWATER 2002-04-04 yes yes
405-763 AT&T OKLA CITY 2012-03-07 yes yes
405-764 Onvoy OKLA CITY – yes yes
405-765 AT&T SHAWNEE 2012-04-09 yes yes
405-766 Onvoy OKLA CITY 2018-09-28 yes yes
405-767 AT&T BRITTON – yes yes
405-768 VoIP Innovations OKLA CITY 2019-06-21 yes yes
405-769 AT&T NICOMAPARK – – yes
405-770 Spok OKLA CITY – – yes
405-771 AT&T SPENCER – yes yes
405-772 Windstream OKLA CITY 2012-07-06 yes yes
405-773 AT&T BETHANY – yes yes
405-774 Verizon OKLA CITY 2012-03-30 yes yes
405-775 AT&T BRITTON – yes yes
405-776 Bandwidth EL RENO 2016-08-22 yes yes
405-777 AT&T SHAWNEE – yes yes
405-778 AT&T OKLA CITY 2008-02-15 yes yes
405-779 AT&T CHICKASHA – yes yes
405-780 AT&T STILLWATER – yes yes
405-781 PAGE PLUS, INC. MOORE – – yes
405-782 AT&T BETHANY – yes yes
405-783 AT&T BYARS – yes yes
405-784 Windstream ASHER – yes yes
405-785 AT&T ALEX – yes yes
405-786 AT&T WELEETKA – yes yes
405-787 AT&T BETHANY – – yes
405-788 T-Mobile SHAWNEE 2001-12-14 yes yes
405-789 AT&T BETHANY – – yes
405-790 AT&T MOORE – – yes
405-791 AT&T BETHANY – yes yes
405-792 AT&T BETHANY – yes yes
405-793 AT&T MOORE – – yes
405-794 AT&T MOORE – – yes
405-795 AT&T OKLA CITY 2006-06-21 yes yes
405-796 Windstream SPENCER – yes yes
405-797 HINTON TEL. CO. OF HINTON OK, INC. EAKLY – – yes
405-798 AT&T BETHANY – – yes
405-799 AT&T MOORE – – yes
405-800 T-Mobile MOORE – yes yes
405-801 Comcast NORMAN – yes yes
405-802 AT&T OKLA CITY – yes yes
405-803 Charter OKLA CITY 2018-09-13 yes yes
405-804 Charter SPENCER – yes yes
405-805 Onvoy YUKON – yes yes
405-806 Windstream MUSTANG – yes yes
405-807 Onvoy NICOMAPARK – yes yes
405-808 AT&T OKLA CITY – – yes
405-809 Onvoy NORMAN – yes yes
405-810 AT&T BRITTON – yes yes
405-812 T-Mobile OKLA CITY – yes yes
405-813 Onvoy OKLA CITY – yes yes
405-814 Onvoy MOORE – yes yes
405-815 AT&T OKLA CITY – yes yes
405-816 T-Mobile OKLA CITY – yes yes
405-817 Peerless HARRAH 2018-11-05 yes yes
405-818 Verizon OKLA CITY – – yes
405-819 T-Mobile OKLA CITY – yes yes
405-820 Verizon OKLA CITY – – yes
405-821 T-Mobile OKLA CITY – yes yes
405-822 T-Mobile OKLA CITY – yes yes
405-823 Verizon OKLA CITY – – yes
405-824 T-Mobile OKLA CITY – yes yes
405-825 CSC VOICE, LLC CHICKASHA 2014-02-06 yes yes
405-826 Verizon OKLA CITY – – yes
405-827 Verizon SHAWNEE 2018-10-23 yes yes
405-828 PIONEER TEL. COOP., INC. DOVER – – yes
405-829 AT&T CEMENT 2002-05-16 yes yes
405-830 AT&T OKLA CITY – – yes
405-831 AT&T OKLA CITY – – yes
405-832 AT&T BRITTON 2016-02-24 yes yes
405-833 Verizon OKLA CITY – – yes
405-834 Verizon OKLA CITY – – yes
405-835 T-Mobile OKLA CITY 2013-06-12 yes yes
405-836 T-Mobile CHANDLER 2019-04-08 yes yes
405-837 AT&T OKLA CITY 2007-07-13 yes yes
405-838 T-Mobile OKLA CITY – yes yes
405-839 Verizon OKLA CITY 2011-11-15 yes yes
405-840 AT&T BRITTON – – yes
405-841 AT&T BRITTON – – yes
405-842 AT&T BRITTON – – yes
405-843 AT&T BRITTON – – yes
405-844 AT&T EDMOND – – yes
405-845 AT&T OKLA CITY 2015-10-06 yes yes
405-846 Lumen TRIBBEY 2020-02-18 yes yes
405-847 AT&T BRITTON 2016-06-27 yes yes
405-848 AT&T BRITTON – – yes
405-849 Comcast BRITTON – yes yes
405-850 Verizon OKLA CITY – – yes
405-851 T-Mobile SEMINOLE 2018-10-31 yes yes
405-852 Lumen NEWCASTLE 2019-02-14 yes yes
405-853 PIONEER TEL. COOP., INC. HENNESSEY – yes yes
405-854 T-Mobile STILLWATER 2019-04-09 yes yes
405-855 AT&T MIDWEST CY 2015-03-04 yes yes
405-856 T-Mobile EDMOND 2020-03-10 yes yes
405-857 Comcast NORMAN 2017-09-26 yes yes
405-858 AT&T BRITTON – yes yes
405-859 T-Mobile OKLA CITY 2012-05-14 yes yes
405-860 Bandwidth PADEN 2020-02-26 yes yes
405-861 T-Mobile EDMOND 2019-03-12 yes yes
405-862 UNITED STATES CELLULAR - OK OKLA CITY 2019-08-26 yes yes
405-863 UNITED STATES CELLULAR - OK OKLA CITY 2002-04-03 yes yes
405-864 WICHITA ONLINE, INC. - OK CASHION 2020-08-11 yes yes
405-865 Onvoy CARNEY – yes yes
405-866 T-Mobile PAULS VLY 2019-06-21 yes yes
405-867 Windstream MAYSVILLE – yes yes
405-868 T-Mobile BETHANY 2020-03-10 yes yes
405-869 AT&T MIDWEST CY – yes yes
405-870 Onvoy YUKON 2021-03-08 yes yes
405-871 Charter OKLA CITY 2020-01-10 yes yes
405-872 AT&T NOBLE – yes yes
405-873 Onvoy SHAWNEE 2021-03-08 yes yes
405-874 Onvoy NOBLE 2020-12-31 yes yes
405-875 Onvoy OKLA CITY 2009-01-12 yes yes
405-876 AIRESPRING, INC. OKLA CITY 2020-09-29 yes yes
405-877 Onvoy GUTHRIE 2016-03-03 yes yes
405-878 AT&T SHAWNEE – yes yes
405-879 AT&T BRITTON – yes yes
405-880 Verizon STILLWATER – yes yes
405-881 AT&T OKLA CITY 2007-11-07 yes yes
405-882 AT&T OKLA CITY 2007-12-12 yes yes
405-883 Windstream PIEDMONT – yes yes
405-884 PIONEER TEL. COOP., INC. GEARY – – yes
405-885 AT&T OKLA CITY 2007-12-13 yes yes
405-886 AT&T OKLA CITY 2007-12-13 yes yes
405-887 T-Mobile OKLA CITY 2007-09-06 yes yes
405-888 Lumen EDMOND – yes yes
405-889 AT&T OKLA CITY 2008-04-29 yes yes
405-890 Lumen STELLA 2020-02-20 yes yes
405-891 Bandwidth TUTTLE 2017-07-20 yes yes
405-892 AT&T CHICKASHA 2012-11-13 yes yes
405-893 PIONEER TEL. COOP., INC. CALUMET – – yes
405-894 Lumen STILLWATER 2018-06-25 yes yes
405-895 AT&T MOORE – – yes
405-896 Onvoy OKLA CITY 2012-06-05 yes yes
405-897 Comcast WHEATLAND 2017-09-26 yes yes
405-898 NUSO, LLC OKLA CITY 2013-03-18 yes yes
405-899 POTTAWATOMIE TEL. CO. TRIBBEY – – yes
405-900 Onvoy OKLA CITY 2015-09-18 yes yes
405-901 Verizon ANADARKO 2020-07-01 yes yes
405-902 Verizon OKLA CITY 2012-04-09 yes yes
405-903 Lumen DIBBLE 2019-02-14 yes yes
405-904 Spok OKLA CITY – – yes
405-905 AT&T OKLA CITY 2008-02-15 yes yes
405-906 AT&T EDMOND 2018-06-08 yes yes
405-907 T-Mobile CHANDLER 2021-01-20 yes yes
405-908 TPx OKLA CITY 2026-09-03 yes no
405-909 PAGE PLUS, INC. MOORE – – yes
405-910 PAGE PLUS, INC. MOORE – – yes
405-912 AT&T MOORE – – yes
405-913 T-Mobile MOORE 2020-12-10 yes yes
405-914 Onvoy NORMAN 2020-12-31 yes yes
405-915 AT&T SHAWNEE 2015-04-27 yes yes
405-916 T-Mobile EDMOND 2020-09-14 yes yes
405-917 AT&T OKLA CITY – – yes
405-919 AT&T OKLA CITY – – yes
405-920 T-Mobile EDMOND 2017-07-13 yes yes
405-921 T-Mobile OKLA CITY – yes yes
405-922 T-Mobile OKLA CITY – yes yes
405-923 T-Mobile OKLA CITY – yes yes
405-924 T-Mobile OKLA CITY – yes yes
405-925 Onvoy SPENCER 2016-06-22 yes yes
405-926 T-Mobile PAULS VLY 2002-04-16 yes yes
405-927 Windstream PRAGUE 2017-07-06 yes yes
405-928 Windstream NORMAN – yes yes
405-929 HINTON TEL. CO. OF HINTON OK, INC. COLONY – yes yes
405-930 Charter OKLA CITY 2019-10-29 yes yes
405-931 Verizon MIDWEST CY 2017-03-13 yes yes
405-932 Windstream PADEN – – yes
405-933 AT&T ANADARKO 2002-05-16 yes yes
405-934 T-Mobile OKLA CITY 2018-08-31 yes yes
405-935 AT&T BRITTON 2008-03-26 yes yes
405-936 AT&T BRITTON – yes yes
405-937 Onvoy STILLWATER 2016-06-17 yes yes
405-938 AT&T EDMOND 2015-10-21 yes yes
405-939 CSC VOICE, LLC PERKINS 2014-02-06 yes yes
405-940 PAGE PLUS, INC. MOORE – – yes
405-941 POTTAWATOMIE TEL. CO. SASAKWA – – yes
405-942 AT&T OKLA CITY – – yes
405-943 AT&T OKLA CITY – – yes
405-944 AT&T CROMWELL – yes yes
405-945 AT&T OKLA CITY – – yes
405-946 AT&T OKLA CITY – – yes
405-947 AT&T OKLA CITY – yes yes
405-948 AT&T OKLA CITY – – yes
405-949 AT&T OKLA CITY – – yes
405-951 AT&T OKLA CITY – – yes
405-952 Verizon HINTON – yes yes
405-953 Dish OKLA CITY 2021-06-11 yes yes
405-954 AT&T OKLA CITY – – yes
405-955 Windstream PURCELL 2015-06-19 yes yes
405-956 T-Mobile BETHANY 2021-05-18 yes yes
405-957 STRATUS NETWORKS NORMAN 2021-05-25 yes yes
405-960 T-Mobile EDMOND 2021-07-12 yes yes
405-961 Charter PURCELL 2025-01-07 yes yes
405-962 AT&T OKLA CITY – yes yes
405-963 Windstream LINDSAY 2015-06-19 yes yes
405-964 MCLOUD TEL. CO. MCLOUD – – yes
405-965 T-Mobile CHANDLER 2015-03-09 yes yes
405-966 OKLAHOMA COMMUNICATION SYSTEM, INC. GRACEMONT – yes yes
405-967 AT&T OKLA CITY 2022-05-20 yes yes
405-968 T-Mobile OKLA CITY 2015-07-21 yes yes
405-969 PIONEER TEL. COOP., INC. CRESCENT – – yes
405-970 Bandwidth GUTHRIE 2021-07-13 yes yes
405-971 AT&T OKLA CITY – yes yes
405-972 AT&T BETHANY – yes yes
405-973 AT&T OKLA CITY – yes yes
405-974 AT&T OKLA CITY – yes yes
405-975 PAGE PLUS, INC. OKLA CITY – – yes
405-977 Bandwidth MOORE 2015-06-02 yes yes
405-978 T-Mobile BETHANY 2022-09-29 yes yes
405-979 AT&T OKLA CITY – yes yes
405-980 Spok OKLA CITY – – yes
405-981 T-Mobile BETHANY 2020-10-02 yes yes
405-982 T-Mobile OKLA CITY 2015-06-11 yes yes
405-983 Telnyx PAULS VLY 2021-04-27 yes yes
405-984 Comcast ARCADIA 2017-09-05 yes yes
405-985 AT&T OKLA CITY 2015-03-03 yes yes
405-986 T-Mobile CHANDLER 2021-06-01 yes yes
405-987 Windstream NICOMAPARK – yes yes
405-988 Lumen MCLOUD 2017-08-22 yes yes
405-989 T-Mobile HOLDENVL 2021-06-01 yes yes
405-990 AT&T OKLA CITY – – yes
405-991 CSC VOICE, LLC LINDSAY 2022-02-18 yes yes
405-992 Vonage OKLA CITY 2017-12-14 yes yes
405-993 Onvoy CHOCTAW 2021-06-17 yes yes
405-994 Onvoy BYARS 2021-07-07 yes yes
405-995 T-Mobile HOLDENVL 2023-01-11 yes yes
405-996 Verizon OKLA CITY – yes yes
405-997 POTTAWATOMIE TEL. CO. EARLSBORO – – yes
405-998 HD CARRIER LLC OKLA CITY 2020-02-11 yes yes
405-999 Verizon CHICKASHA – yes yes

Frequently asked

How many prefixes does area code 405 have?

783 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,830 thousand-number ranges across 93 rate centers.

What do the first three digits after 405 tell me?

They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.

Is a 405 prefix tied to a specific town?

To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.

What does “pooled” mean in the 405 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 563 of 405's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.

Source and limits

NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.

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